Plastic sheet or slab



Patented May 17, 1927.

PATENT QFFICE.

NATHAN E. NEWMAN, OF BRONXVILLE, NEW YORK.

PLASTIC SHEET R SLAB.

Application filed March 5, 1926. Serial No. 92,440.

My invention relates to a new article of manufacture inthe nature of asheet or slab constructed or formed for the purpose of imitating tiling,to an improved process for producing the same.

The body of the slab ronsists of an admixture of asbestos and cement,thecement being employed as a binder. After the slab has been formed andcomes from the molding machine, and is thoroughly dry, it is providedwith a multiplicity of intersecting scores and subsequently the surfacewhich,

has been scored is treated with an applica tion of nitrocellulose.

In the drawings: Figure 1 is a perspective view of one of the slabsembodying my invention; and Fire 2 is a cross section thereof. Herringmore particularly to the drawings, the numeral 5 designates the bod ofthe slab consisting of an admixture o asbestos and cement, the cementserving as a binder for the asbestos fibers. The slab in its entirety isproduced by any suitable molding process, and after it has indurated itis scored in criss-cross fashion as shown at 6 to imitate tiling. Inthis connection, I wish to point out that it is extremely important thatthe recesses or kerfs be formed in the body of the slab after it hasbeen molded and indurated, as if it is attempted 'to impress the kerfsin the admixture while it is in a plastic state, it will be found thatthey will not register when the slabs are set up, obviously due tocontraction of the mass.

. real tiling.

When the slab has been scored the obverse side thereof is coated withnitrocellulose 7 which not only serves to protect the body, but producesan effect very closely imitating \Vhat I claim is:

1.. The improved process of producing artificial slabs which consists infirst mixing asbestos and a binder, then molding therefrom an induratedslab, scoring the face of the indurated slab, and then providing thescored face with a protective coating.

2. As an article of manufacture, a slab consisting of an induratedadmixture of as bestos and a binder provided with intersecting scoresextending along the complete expanse of said body, and a protectivecovering for the surface of said slab which is scored.

3. As an article of manufacture, a slab consisting of an induratedadmixture of asbestos and a binder provided with intersectin scores, anda coating of nitro'cellulose over the obverse side of the body.

4. The improved process of producing artificial slabs which consists infirst mixing asbestos and a binder, then molding and indurating a slabof said mixture, and scoring the wearing side of the indurated slab toproduce a tile effect.

Si 'ned at New York city, New York, this 6th day of February, 1926.

NATHAN E. NEWMAN. l

